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24330d27 | 1 | /* |
4bd4418a | 2 | * $RCSId: xc/lib/fontconfig/src/fccharset.c,v 1.18 2002/08/22 07:36:44 keithp Exp $ |
24330d27 | 3 | * |
46b51147 | 4 | * Copyright © 2001 Keith Packard |
24330d27 KP |
5 | * |
6 | * Permission to use, copy, modify, distribute, and sell this software and its | |
7 | * documentation for any purpose is hereby granted without fee, provided that | |
8 | * the above copyright notice appear in all copies and that both that | |
9 | * copyright notice and this permission notice appear in supporting | |
10 | * documentation, and that the name of Keith Packard not be used in | |
11 | * advertising or publicity pertaining to distribution of the software without | |
12 | * specific, written prior permission. Keith Packard makes no | |
13 | * representations about the suitability of this software for any purpose. It | |
14 | * is provided "as is" without express or implied warranty. | |
15 | * | |
16 | * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
17 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
18 | * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
19 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
20 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
21 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR | |
22 | * PERFORMANCE OF THIS SOFTWARE. | |
23 | */ | |
24 | ||
25 | #include <stdlib.h> | |
26 | #include "fcint.h" | |
27 | ||
28 | /* #define CHECK */ | |
29 | ||
20ac65ab | 30 | /* #define CHATTY */ |
24330d27 | 31 | |
4262e0b3 PL |
32 | static FcCharSet ** charsets = 0; |
33 | static FcChar16 ** numbers = 0; | |
34 | static int charset_bank_count = 0, charset_ptr, charset_count; | |
cd2ec1a9 | 35 | static int charset_numbers_ptr, charset_numbers_count; |
4262e0b3 | 36 | static FcCharLeaf ** leaves = 0; |
cd2ec1a9 | 37 | static int charset_leaf_ptr, charset_leaf_count; |
4262e0b3 | 38 | static int ** leaf_idx = 0; |
cd2ec1a9 PL |
39 | static int charset_leaf_idx_ptr, charset_leaf_idx_count; |
40 | ||
82f35f8b PL |
41 | extern const FcChar16 *langBankNumbers; |
42 | extern const FcCharLeaf *langBankLeaves; | |
43 | extern const int *langBankLeafIdx; | |
44 | ||
45 | static FcBool | |
46 | FcCharSetEnsureBank (int bi); | |
47 | ||
48 | void | |
49 | FcLangCharSetPopulate (void) | |
50 | { | |
19ea60bc | 51 | int bi = FcCacheBankToIndexMTF (FC_BANK_LANGS); |
82f35f8b PL |
52 | FcCharSetEnsureBank (bi); |
53 | charsets[bi] = 0; | |
54 | numbers[bi] = (FcChar16 *)&langBankNumbers; | |
55 | leaves[bi] = (FcCharLeaf *)&langBankLeaves; | |
56 | leaf_idx[bi] = (int *)&langBankLeafIdx; | |
57 | } | |
58 | ||
24330d27 KP |
59 | FcCharSet * |
60 | FcCharSetCreate (void) | |
61 | { | |
62 | FcCharSet *fcs; | |
63 | ||
64 | fcs = (FcCharSet *) malloc (sizeof (FcCharSet)); | |
65 | if (!fcs) | |
66 | return 0; | |
67 | FcMemAlloc (FC_MEM_CHARSET, sizeof (FcCharSet)); | |
68 | fcs->ref = 1; | |
20ac65ab | 69 | fcs->num = 0; |
4262e0b3 | 70 | fcs->bank = FC_BANK_DYNAMIC; |
cd2ec1a9 PL |
71 | fcs->u.dyn.leaves = 0; |
72 | fcs->u.dyn.numbers = 0; | |
24330d27 KP |
73 | return fcs; |
74 | } | |
75 | ||
76 | FcCharSet * | |
77 | FcCharSetNew (void); | |
78 | ||
79 | FcCharSet * | |
80 | FcCharSetNew (void) | |
81 | { | |
82 | return FcCharSetCreate (); | |
83 | } | |
84 | ||
24330d27 KP |
85 | void |
86 | FcCharSetDestroy (FcCharSet *fcs) | |
87 | { | |
d8d73958 KP |
88 | int i; |
89 | if (fcs->ref == FC_REF_CONSTANT) | |
90 | return; | |
91 | if (--fcs->ref > 0) | |
92 | return; | |
4262e0b3 | 93 | if (fcs->bank == FC_BANK_DYNAMIC) |
d8d73958 | 94 | { |
cd2ec1a9 PL |
95 | for (i = 0; i < fcs->num; i++) |
96 | { | |
97 | FcMemFree (FC_MEM_CHARLEAF, sizeof (FcCharLeaf)); | |
98 | free (fcs->u.dyn.leaves[i]); | |
99 | } | |
100 | if (fcs->u.dyn.leaves) | |
101 | { | |
102 | FcMemFree (FC_MEM_CHARSET, fcs->num * sizeof (FcCharLeaf *)); | |
103 | free (fcs->u.dyn.leaves); | |
104 | } | |
105 | if (fcs->u.dyn.numbers) | |
106 | { | |
107 | FcMemFree (FC_MEM_CHARSET, fcs->num * sizeof (FcChar16)); | |
108 | free (fcs->u.dyn.numbers); | |
109 | } | |
d8d73958 KP |
110 | } |
111 | FcMemFree (FC_MEM_CHARSET, sizeof (FcCharSet)); | |
112 | free (fcs); | |
24330d27 KP |
113 | } |
114 | ||
115 | /* | |
20ac65ab KP |
116 | * Locate the leaf containing the specified char, return |
117 | * its index if it exists, otherwise return negative of | |
118 | * the (position + 1) where it should be inserted | |
24330d27 KP |
119 | */ |
120 | ||
20ac65ab KP |
121 | static int |
122 | FcCharSetFindLeafPos (const FcCharSet *fcs, FcChar32 ucs4) | |
123 | { | |
cd2ec1a9 | 124 | FcChar16 *numbers = FcCharSetGetNumbers(fcs); |
20ac65ab KP |
125 | FcChar16 page; |
126 | int low = 0; | |
127 | int high = fcs->num - 1; | |
128 | ||
129 | if (!numbers) | |
130 | return -1; | |
131 | ucs4 >>= 8; | |
132 | while (low <= high) | |
133 | { | |
134 | int mid = (low + high) >> 1; | |
135 | page = numbers[mid]; | |
136 | if (page == ucs4) | |
137 | return mid; | |
138 | if (page < ucs4) | |
139 | low = mid + 1; | |
140 | else | |
141 | high = mid - 1; | |
142 | } | |
2fcac349 | 143 | if (high < 0 || (high < fcs->num && numbers[high] < ucs4)) |
20ac65ab KP |
144 | high++; |
145 | return -(high + 1); | |
146 | } | |
147 | ||
24330d27 KP |
148 | static FcCharLeaf * |
149 | FcCharSetFindLeaf (const FcCharSet *fcs, FcChar32 ucs4) | |
150 | { | |
20ac65ab KP |
151 | int pos = FcCharSetFindLeafPos (fcs, ucs4); |
152 | if (pos >= 0) | |
cd2ec1a9 | 153 | return FcCharSetGetLeaf(fcs, pos); |
20ac65ab KP |
154 | return 0; |
155 | } | |
24330d27 | 156 | |
20ac65ab KP |
157 | static FcBool |
158 | FcCharSetPutLeaf (FcCharSet *fcs, | |
159 | FcChar32 ucs4, | |
160 | FcCharLeaf *leaf, | |
161 | int pos) | |
162 | { | |
163 | FcCharLeaf **leaves; | |
164 | FcChar16 *numbers; | |
165 | ||
166 | ucs4 >>= 8; | |
167 | if (ucs4 >= 0x10000) | |
168 | return FcFalse; | |
4262e0b3 | 169 | if (fcs->bank != FC_BANK_DYNAMIC) |
cd2ec1a9 PL |
170 | { |
171 | int i; | |
172 | ||
173 | leaves = malloc ((fcs->num + 1) * sizeof (FcCharLeaf *)); | |
174 | if (!leaves) | |
175 | return FcFalse; | |
176 | FcMemAlloc (FC_MEM_CHARSET, (fcs->num + 1) * sizeof (FcCharLeaf *)); | |
177 | numbers = malloc ((fcs->num + 1) * sizeof (FcChar16)); | |
178 | if (!numbers) | |
179 | return FcFalse; | |
180 | FcMemAlloc (FC_MEM_CHARSET, (fcs->num + 1) * sizeof (FcChar16)); | |
181 | ||
182 | for (i = 0; i < fcs->num; i++) | |
183 | leaves[i] = FcCharSetGetLeaf(fcs, i); | |
184 | memcpy (numbers, FcCharSetGetNumbers(fcs), | |
185 | fcs->num * sizeof (FcChar16)); | |
cd2ec1a9 | 186 | } |
20ac65ab | 187 | else |
cd2ec1a9 PL |
188 | { |
189 | if (!fcs->u.dyn.leaves) | |
190 | leaves = malloc (sizeof (FcCharLeaf *)); | |
191 | else | |
192 | leaves = realloc (fcs->u.dyn.leaves, (fcs->num + 1) * sizeof (FcCharLeaf *)); | |
193 | if (!leaves) | |
194 | return FcFalse; | |
195 | if (fcs->num) | |
196 | FcMemFree (FC_MEM_CHARSET, fcs->num * sizeof (FcCharLeaf *)); | |
197 | FcMemAlloc (FC_MEM_CHARSET, (fcs->num + 1) * sizeof (FcCharLeaf *)); | |
198 | fcs->u.dyn.leaves = leaves; | |
199 | if (!fcs->u.dyn.numbers) | |
200 | numbers = malloc (sizeof (FcChar16)); | |
201 | else | |
202 | numbers = realloc (fcs->u.dyn.numbers, (fcs->num + 1) * sizeof (FcChar16)); | |
203 | if (!numbers) | |
204 | return FcFalse; | |
205 | if (fcs->num) | |
206 | FcMemFree (FC_MEM_CHARSET, fcs->num * sizeof (FcChar16)); | |
207 | FcMemAlloc (FC_MEM_CHARSET, (fcs->num + 1) * sizeof (FcChar16)); | |
208 | fcs->u.dyn.numbers = numbers; | |
209 | } | |
20ac65ab | 210 | |
cd2ec1a9 | 211 | memmove (fcs->u.dyn.leaves + pos + 1, fcs->u.dyn.leaves + pos, |
20ac65ab | 212 | (fcs->num - pos) * sizeof (FcCharLeaf *)); |
cd2ec1a9 | 213 | memmove (fcs->u.dyn.numbers + pos + 1, fcs->u.dyn.numbers + pos, |
20ac65ab | 214 | (fcs->num - pos) * sizeof (FcChar16)); |
cd2ec1a9 PL |
215 | fcs->u.dyn.numbers[pos] = (FcChar16) ucs4; |
216 | fcs->u.dyn.leaves[pos] = leaf; | |
20ac65ab KP |
217 | fcs->num++; |
218 | return FcTrue; | |
24330d27 KP |
219 | } |
220 | ||
221 | /* | |
222 | * Locate the leaf containing the specified char, creating it | |
223 | * if desired | |
224 | */ | |
225 | ||
c647f6f1 | 226 | FcCharLeaf * |
24330d27 KP |
227 | FcCharSetFindLeafCreate (FcCharSet *fcs, FcChar32 ucs4) |
228 | { | |
20ac65ab KP |
229 | int pos; |
230 | FcCharLeaf *leaf; | |
24330d27 | 231 | |
20ac65ab KP |
232 | pos = FcCharSetFindLeafPos (fcs, ucs4); |
233 | if (pos >= 0) | |
cd2ec1a9 | 234 | return FcCharSetGetLeaf(fcs, pos); |
20ac65ab KP |
235 | |
236 | leaf = calloc (1, sizeof (FcCharLeaf)); | |
237 | if (!leaf) | |
238 | return 0; | |
239 | ||
240 | pos = -pos - 1; | |
241 | if (!FcCharSetPutLeaf (fcs, ucs4, leaf, pos)) | |
24330d27 | 242 | { |
20ac65ab KP |
243 | free (leaf); |
244 | return 0; | |
24330d27 | 245 | } |
d8d73958 | 246 | FcMemAlloc (FC_MEM_CHARLEAF, sizeof (FcCharLeaf)); |
20ac65ab KP |
247 | return leaf; |
248 | } | |
249 | ||
250 | static FcBool | |
251 | FcCharSetInsertLeaf (FcCharSet *fcs, FcChar32 ucs4, FcCharLeaf *leaf) | |
252 | { | |
253 | int pos; | |
254 | ||
255 | pos = FcCharSetFindLeafPos (fcs, ucs4); | |
256 | if (pos >= 0) | |
24330d27 | 257 | { |
d8d73958 | 258 | FcMemFree (FC_MEM_CHARLEAF, sizeof (FcCharLeaf)); |
4262e0b3 | 259 | if (fcs->bank == FC_BANK_DYNAMIC) |
cd2ec1a9 PL |
260 | { |
261 | free (fcs->u.dyn.leaves[pos]); | |
262 | fcs->u.dyn.leaves[pos] = leaf; | |
263 | } | |
264 | else | |
265 | { | |
4262e0b3 | 266 | leaves[fcs->bank][leaf_idx[fcs->bank][fcs->u.stat.leafidx_offset]+pos] = *leaf; |
cd2ec1a9 | 267 | } |
20ac65ab | 268 | return FcTrue; |
24330d27 | 269 | } |
20ac65ab KP |
270 | pos = -pos - 1; |
271 | return FcCharSetPutLeaf (fcs, ucs4, leaf, pos); | |
24330d27 KP |
272 | } |
273 | ||
274 | FcBool | |
275 | FcCharSetAddChar (FcCharSet *fcs, FcChar32 ucs4) | |
276 | { | |
277 | FcCharLeaf *leaf; | |
278 | FcChar32 *b; | |
279 | ||
d8d73958 | 280 | if (fcs->ref == FC_REF_CONSTANT) |
24330d27 KP |
281 | return FcFalse; |
282 | leaf = FcCharSetFindLeafCreate (fcs, ucs4); | |
283 | if (!leaf) | |
284 | return FcFalse; | |
285 | b = &leaf->map[(ucs4 & 0xff) >> 5]; | |
286 | *b |= (1 << (ucs4 & 0x1f)); | |
287 | return FcTrue; | |
288 | } | |
289 | ||
290 | /* | |
291 | * An iterator for the leaves of a charset | |
292 | */ | |
293 | ||
294 | typedef struct _fcCharSetIter { | |
295 | FcCharLeaf *leaf; | |
296 | FcChar32 ucs4; | |
20ac65ab | 297 | int pos; |
24330d27 KP |
298 | } FcCharSetIter; |
299 | ||
300 | /* | |
20ac65ab | 301 | * Set iter->leaf to the leaf containing iter->ucs4 or higher |
24330d27 | 302 | */ |
24330d27 KP |
303 | |
304 | static void | |
305 | FcCharSetIterSet (const FcCharSet *fcs, FcCharSetIter *iter) | |
306 | { | |
20ac65ab | 307 | int pos = FcCharSetFindLeafPos (fcs, iter->ucs4); |
1412a699 | 308 | |
20ac65ab | 309 | if (pos < 0) |
1412a699 | 310 | { |
20ac65ab KP |
311 | pos = -pos - 1; |
312 | if (pos == fcs->num) | |
1412a699 | 313 | { |
20ac65ab KP |
314 | iter->ucs4 = ~0; |
315 | iter->leaf = 0; | |
316 | return; | |
1412a699 | 317 | } |
cd2ec1a9 | 318 | iter->ucs4 = (FcChar32) FcCharSetGetNumbers(fcs)[pos] << 8; |
1412a699 | 319 | } |
cd2ec1a9 | 320 | iter->leaf = FcCharSetGetLeaf(fcs, pos); |
20ac65ab KP |
321 | iter->pos = pos; |
322 | #ifdef CHATTY | |
323 | printf ("set %08x: %08x\n", iter->ucs4, (FcChar32) iter->leaf); | |
1412a699 | 324 | #endif |
24330d27 KP |
325 | } |
326 | ||
327 | static void | |
328 | FcCharSetIterNext (const FcCharSet *fcs, FcCharSetIter *iter) | |
329 | { | |
20ac65ab KP |
330 | int pos = iter->pos + 1; |
331 | if (pos >= fcs->num) | |
1412a699 KP |
332 | { |
333 | iter->ucs4 = ~0; | |
334 | iter->leaf = 0; | |
1412a699 | 335 | } |
20ac65ab | 336 | else |
1412a699 | 337 | { |
cd2ec1a9 PL |
338 | iter->ucs4 = (FcChar32) FcCharSetGetNumbers(fcs)[pos] << 8; |
339 | iter->leaf = FcCharSetGetLeaf(fcs, pos); | |
20ac65ab | 340 | iter->pos = pos; |
1412a699 | 341 | } |
1412a699 KP |
342 | } |
343 | ||
20ac65ab | 344 | #ifdef CHATTY |
1412a699 | 345 | static void |
20ac65ab | 346 | FcCharSetDump (const FcCharSet *fcs) |
1412a699 | 347 | { |
20ac65ab KP |
348 | int pos; |
349 | ||
350 | printf ("fcs %08x:\n", (FcChar32) fcs); | |
351 | for (pos = 0; pos < fcs->num; pos++) | |
1412a699 | 352 | { |
20ac65ab KP |
353 | FcCharLeaf *leaf = fcs->leaves[pos]; |
354 | FcChar32 ucs4 = (FcChar32) fcs->numbers[pos] << 8; | |
355 | ||
356 | printf (" %08x: %08x\n", ucs4, (FcChar32) leaf); | |
1412a699 | 357 | } |
24330d27 | 358 | } |
1412a699 | 359 | #endif |
24330d27 KP |
360 | |
361 | static void | |
362 | FcCharSetIterStart (const FcCharSet *fcs, FcCharSetIter *iter) | |
363 | { | |
20ac65ab KP |
364 | #ifdef CHATTY |
365 | FcCharSetDump (fcs); | |
1412a699 | 366 | #endif |
24330d27 | 367 | iter->ucs4 = 0; |
67accef4 | 368 | iter->pos = 0; |
24330d27 KP |
369 | FcCharSetIterSet (fcs, iter); |
370 | } | |
371 | ||
372 | FcCharSet * | |
373 | FcCharSetCopy (FcCharSet *src) | |
374 | { | |
d8d73958 KP |
375 | if (src->ref != FC_REF_CONSTANT) |
376 | src->ref++; | |
24330d27 KP |
377 | return src; |
378 | } | |
379 | ||
380 | FcBool | |
381 | FcCharSetEqual (const FcCharSet *a, const FcCharSet *b) | |
382 | { | |
383 | FcCharSetIter ai, bi; | |
384 | int i; | |
385 | ||
386 | if (a == b) | |
387 | return FcTrue; | |
388 | for (FcCharSetIterStart (a, &ai), FcCharSetIterStart (b, &bi); | |
389 | ai.leaf && bi.leaf; | |
390 | FcCharSetIterNext (a, &ai), FcCharSetIterNext (b, &bi)) | |
391 | { | |
392 | if (ai.ucs4 != bi.ucs4) | |
393 | return FcFalse; | |
394 | for (i = 0; i < 256/32; i++) | |
395 | if (ai.leaf->map[i] != bi.leaf->map[i]) | |
396 | return FcFalse; | |
397 | } | |
398 | return ai.leaf == bi.leaf; | |
399 | } | |
400 | ||
401 | static FcBool | |
402 | FcCharSetAddLeaf (FcCharSet *fcs, | |
403 | FcChar32 ucs4, | |
404 | FcCharLeaf *leaf) | |
405 | { | |
406 | FcCharLeaf *new = FcCharSetFindLeafCreate (fcs, ucs4); | |
407 | if (!new) | |
408 | return FcFalse; | |
409 | *new = *leaf; | |
410 | return FcTrue; | |
411 | } | |
412 | ||
413 | static FcCharSet * | |
414 | FcCharSetOperate (const FcCharSet *a, | |
415 | const FcCharSet *b, | |
416 | FcBool (*overlap) (FcCharLeaf *result, | |
417 | const FcCharLeaf *al, | |
418 | const FcCharLeaf *bl), | |
419 | FcBool aonly, | |
420 | FcBool bonly) | |
421 | { | |
422 | FcCharSet *fcs; | |
423 | FcCharSetIter ai, bi; | |
424 | ||
425 | fcs = FcCharSetCreate (); | |
426 | if (!fcs) | |
427 | goto bail0; | |
428 | FcCharSetIterStart (a, &ai); | |
429 | FcCharSetIterStart (b, &bi); | |
1412a699 | 430 | while ((ai.leaf || (bonly && bi.leaf)) && (bi.leaf || (aonly && ai.leaf))) |
24330d27 KP |
431 | { |
432 | if (ai.ucs4 < bi.ucs4) | |
433 | { | |
434 | if (aonly) | |
435 | { | |
436 | if (!FcCharSetAddLeaf (fcs, ai.ucs4, ai.leaf)) | |
437 | goto bail1; | |
438 | FcCharSetIterNext (a, &ai); | |
439 | } | |
440 | else | |
441 | { | |
442 | ai.ucs4 = bi.ucs4; | |
443 | FcCharSetIterSet (a, &ai); | |
444 | } | |
445 | } | |
446 | else if (bi.ucs4 < ai.ucs4 ) | |
447 | { | |
448 | if (bonly) | |
449 | { | |
450 | if (!FcCharSetAddLeaf (fcs, bi.ucs4, bi.leaf)) | |
451 | goto bail1; | |
452 | FcCharSetIterNext (b, &bi); | |
453 | } | |
454 | else | |
455 | { | |
456 | bi.ucs4 = ai.ucs4; | |
457 | FcCharSetIterSet (b, &bi); | |
458 | } | |
459 | } | |
460 | else | |
461 | { | |
462 | FcCharLeaf leaf; | |
463 | ||
464 | if ((*overlap) (&leaf, ai.leaf, bi.leaf)) | |
465 | { | |
466 | if (!FcCharSetAddLeaf (fcs, ai.ucs4, &leaf)) | |
467 | goto bail1; | |
468 | } | |
469 | FcCharSetIterNext (a, &ai); | |
470 | FcCharSetIterNext (b, &bi); | |
471 | } | |
472 | } | |
473 | return fcs; | |
474 | bail1: | |
475 | FcCharSetDestroy (fcs); | |
476 | bail0: | |
477 | return 0; | |
478 | } | |
479 | ||
480 | static FcBool | |
481 | FcCharSetIntersectLeaf (FcCharLeaf *result, | |
482 | const FcCharLeaf *al, | |
483 | const FcCharLeaf *bl) | |
484 | { | |
485 | int i; | |
486 | FcBool nonempty = FcFalse; | |
487 | ||
488 | for (i = 0; i < 256/32; i++) | |
489 | if ((result->map[i] = al->map[i] & bl->map[i])) | |
490 | nonempty = FcTrue; | |
491 | return nonempty; | |
492 | } | |
493 | ||
494 | FcCharSet * | |
495 | FcCharSetIntersect (const FcCharSet *a, const FcCharSet *b) | |
496 | { | |
497 | return FcCharSetOperate (a, b, FcCharSetIntersectLeaf, FcFalse, FcFalse); | |
498 | } | |
499 | ||
500 | static FcBool | |
501 | FcCharSetUnionLeaf (FcCharLeaf *result, | |
502 | const FcCharLeaf *al, | |
503 | const FcCharLeaf *bl) | |
504 | { | |
505 | int i; | |
506 | ||
507 | for (i = 0; i < 256/32; i++) | |
508 | result->map[i] = al->map[i] | bl->map[i]; | |
509 | return FcTrue; | |
510 | } | |
511 | ||
512 | FcCharSet * | |
513 | FcCharSetUnion (const FcCharSet *a, const FcCharSet *b) | |
514 | { | |
515 | return FcCharSetOperate (a, b, FcCharSetUnionLeaf, FcTrue, FcTrue); | |
516 | } | |
517 | ||
518 | static FcBool | |
519 | FcCharSetSubtractLeaf (FcCharLeaf *result, | |
520 | const FcCharLeaf *al, | |
521 | const FcCharLeaf *bl) | |
522 | { | |
523 | int i; | |
524 | FcBool nonempty = FcFalse; | |
525 | ||
526 | for (i = 0; i < 256/32; i++) | |
527 | if ((result->map[i] = al->map[i] & ~bl->map[i])) | |
528 | nonempty = FcTrue; | |
529 | return nonempty; | |
530 | } | |
531 | ||
532 | FcCharSet * | |
533 | FcCharSetSubtract (const FcCharSet *a, const FcCharSet *b) | |
534 | { | |
535 | return FcCharSetOperate (a, b, FcCharSetSubtractLeaf, FcTrue, FcFalse); | |
536 | } | |
537 | ||
538 | FcBool | |
539 | FcCharSetHasChar (const FcCharSet *fcs, FcChar32 ucs4) | |
540 | { | |
541 | FcCharLeaf *leaf = FcCharSetFindLeaf (fcs, ucs4); | |
542 | if (!leaf) | |
543 | return FcFalse; | |
544 | return (leaf->map[(ucs4 & 0xff) >> 5] & (1 << (ucs4 & 0x1f))) != 0; | |
545 | } | |
546 | ||
547 | static FcChar32 | |
548 | FcCharSetPopCount (FcChar32 c1) | |
549 | { | |
550 | /* hackmem 169 */ | |
551 | FcChar32 c2 = (c1 >> 1) & 033333333333; | |
552 | c2 = c1 - c2 - ((c2 >> 1) & 033333333333); | |
553 | return (((c2 + (c2 >> 3)) & 030707070707) % 077); | |
554 | } | |
555 | ||
556 | FcChar32 | |
557 | FcCharSetIntersectCount (const FcCharSet *a, const FcCharSet *b) | |
558 | { | |
559 | FcCharSetIter ai, bi; | |
560 | FcChar32 count = 0; | |
561 | ||
562 | FcCharSetIterStart (a, &ai); | |
563 | FcCharSetIterStart (b, &bi); | |
564 | while (ai.leaf && bi.leaf) | |
565 | { | |
566 | if (ai.ucs4 == bi.ucs4) | |
567 | { | |
568 | FcChar32 *am = ai.leaf->map; | |
569 | FcChar32 *bm = bi.leaf->map; | |
570 | int i = 256/32; | |
571 | while (i--) | |
572 | count += FcCharSetPopCount (*am++ & *bm++); | |
573 | FcCharSetIterNext (a, &ai); | |
574 | } | |
575 | else if (ai.ucs4 < bi.ucs4) | |
576 | { | |
577 | ai.ucs4 = bi.ucs4; | |
578 | FcCharSetIterSet (a, &ai); | |
579 | } | |
580 | if (bi.ucs4 < ai.ucs4) | |
581 | { | |
582 | bi.ucs4 = ai.ucs4; | |
583 | FcCharSetIterSet (b, &bi); | |
584 | } | |
585 | } | |
586 | return count; | |
587 | } | |
588 | ||
589 | FcChar32 | |
590 | FcCharSetCount (const FcCharSet *a) | |
591 | { | |
592 | FcCharSetIter ai; | |
593 | FcChar32 count = 0; | |
594 | ||
595 | for (FcCharSetIterStart (a, &ai); ai.leaf; FcCharSetIterNext (a, &ai)) | |
596 | { | |
597 | int i = 256/32; | |
598 | FcChar32 *am = ai.leaf->map; | |
599 | ||
600 | while (i--) | |
601 | count += FcCharSetPopCount (*am++); | |
602 | } | |
603 | return count; | |
604 | } | |
605 | ||
606 | FcChar32 | |
607 | FcCharSetSubtractCount (const FcCharSet *a, const FcCharSet *b) | |
608 | { | |
609 | FcCharSetIter ai, bi; | |
610 | FcChar32 count = 0; | |
611 | ||
612 | FcCharSetIterStart (a, &ai); | |
613 | FcCharSetIterStart (b, &bi); | |
614 | while (ai.leaf) | |
615 | { | |
616 | if (ai.ucs4 <= bi.ucs4) | |
617 | { | |
618 | FcChar32 *am = ai.leaf->map; | |
619 | int i = 256/32; | |
620 | if (ai.ucs4 == bi.ucs4) | |
621 | { | |
622 | FcChar32 *bm = bi.leaf->map;; | |
623 | while (i--) | |
624 | count += FcCharSetPopCount (*am++ & ~*bm++); | |
625 | } | |
626 | else | |
627 | { | |
628 | while (i--) | |
629 | count += FcCharSetPopCount (*am++); | |
630 | } | |
631 | FcCharSetIterNext (a, &ai); | |
632 | } | |
633 | else if (bi.leaf) | |
634 | { | |
635 | bi.ucs4 = ai.ucs4; | |
636 | FcCharSetIterSet (b, &bi); | |
637 | } | |
638 | } | |
639 | return count; | |
640 | } | |
641 | ||
1412a699 KP |
642 | /* |
643 | * return FcTrue iff a is a subset of b | |
644 | */ | |
645 | FcBool | |
646 | FcCharSetIsSubset (const FcCharSet *a, const FcCharSet *b) | |
647 | { | |
20ac65ab KP |
648 | int ai, bi; |
649 | FcChar16 an, bn; | |
650 | ||
651 | if (a == b) return FcTrue; | |
652 | bi = 0; | |
653 | ai = 0; | |
654 | while (ai < a->num && bi < b->num) | |
bc9469ba | 655 | { |
cd2ec1a9 PL |
656 | an = FcCharSetGetNumbers(a)[ai]; |
657 | bn = FcCharSetGetNumbers(b)[bi]; | |
f45d39b1 KP |
658 | /* |
659 | * Check matching pages | |
660 | */ | |
20ac65ab | 661 | if (an == bn) |
1412a699 | 662 | { |
cd2ec1a9 PL |
663 | FcChar32 *am = FcCharSetGetLeaf(a, ai)->map; |
664 | FcChar32 *bm = FcCharSetGetLeaf(b, bi)->map; | |
20ac65ab KP |
665 | |
666 | if (am != bm) | |
bc9469ba | 667 | { |
20ac65ab | 668 | int i = 256/32; |
f45d39b1 KP |
669 | /* |
670 | * Does am have any bits not in bm? | |
671 | */ | |
20ac65ab KP |
672 | while (i--) |
673 | if (*am++ & ~*bm++) | |
674 | return FcFalse; | |
bc9469ba | 675 | } |
20ac65ab KP |
676 | ai++; |
677 | bi++; | |
678 | } | |
f45d39b1 KP |
679 | /* |
680 | * Does a have any pages not in b? | |
681 | */ | |
20ac65ab KP |
682 | else if (an < bn) |
683 | return FcFalse; | |
684 | else | |
685 | { | |
686 | int low = bi + 1; | |
687 | int high = b->num - 1; | |
688 | ||
f45d39b1 KP |
689 | /* |
690 | * Search for page 'an' in 'b' | |
691 | */ | |
20ac65ab | 692 | while (low <= high) |
bc9469ba | 693 | { |
20ac65ab | 694 | int mid = (low + high) >> 1; |
cd2ec1a9 | 695 | bn = FcCharSetGetNumbers(b)[mid]; |
20ac65ab KP |
696 | if (bn == an) |
697 | { | |
698 | high = mid; | |
bc9469ba | 699 | break; |
20ac65ab KP |
700 | } |
701 | if (bn < an) | |
702 | low = mid + 1; | |
703 | else | |
704 | high = mid - 1; | |
bc9469ba | 705 | } |
20ac65ab | 706 | bi = high; |
cd2ec1a9 | 707 | while (bi < b->num && FcCharSetGetNumbers(b)[bi] < an) |
20ac65ab | 708 | bi++; |
1412a699 | 709 | } |
1412a699 | 710 | } |
f45d39b1 KP |
711 | /* |
712 | * did we look at every page? | |
713 | */ | |
1b16ef20 | 714 | return ai >= a->num; |
1412a699 KP |
715 | } |
716 | ||
36732012 KP |
717 | /* |
718 | * These two functions efficiently walk the entire charmap for | |
719 | * other software (like pango) that want their own copy | |
720 | */ | |
721 | ||
aae6f7d4 | 722 | FcChar32 |
36732012 KP |
723 | FcCharSetNextPage (const FcCharSet *a, |
724 | FcChar32 map[FC_CHARSET_MAP_SIZE], | |
725 | FcChar32 *next) | |
aae6f7d4 KP |
726 | { |
727 | FcCharSetIter ai; | |
36732012 | 728 | FcChar32 page; |
aae6f7d4 | 729 | |
36732012 | 730 | ai.ucs4 = *next; |
aae6f7d4 KP |
731 | FcCharSetIterSet (a, &ai); |
732 | if (!ai.leaf) | |
36732012 KP |
733 | return FC_CHARSET_DONE; |
734 | ||
735 | /* | |
736 | * Save current information | |
737 | */ | |
738 | page = ai.ucs4; | |
739 | memcpy (map, ai.leaf->map, sizeof (ai.leaf->map)); | |
740 | /* | |
741 | * Step to next page | |
742 | */ | |
743 | FcCharSetIterNext (a, &ai); | |
744 | *next = ai.ucs4; | |
745 | ||
aae6f7d4 KP |
746 | return page; |
747 | } | |
748 | ||
36732012 KP |
749 | FcChar32 |
750 | FcCharSetFirstPage (const FcCharSet *a, | |
751 | FcChar32 map[FC_CHARSET_MAP_SIZE], | |
752 | FcChar32 *next) | |
753 | { | |
754 | *next = 0; | |
755 | return FcCharSetNextPage (a, map, next); | |
756 | } | |
757 | ||
20ac65ab KP |
758 | /* |
759 | * old coverage API, rather hard to use correctly | |
760 | */ | |
761 | FcChar32 | |
762 | FcCharSetCoverage (const FcCharSet *a, FcChar32 page, FcChar32 *result); | |
763 | ||
764 | FcChar32 | |
765 | FcCharSetCoverage (const FcCharSet *a, FcChar32 page, FcChar32 *result) | |
766 | { | |
767 | FcCharSetIter ai; | |
768 | ||
769 | ai.ucs4 = page; | |
770 | FcCharSetIterSet (a, &ai); | |
771 | if (!ai.leaf) | |
772 | { | |
773 | memset (result, '\0', 256 / 8); | |
774 | page = 0; | |
775 | } | |
776 | else | |
777 | { | |
778 | memcpy (result, ai.leaf->map, sizeof (ai.leaf->map)); | |
779 | FcCharSetIterNext (a, &ai); | |
780 | page = ai.ucs4; | |
781 | } | |
782 | return page; | |
783 | } | |
784 | ||
24330d27 KP |
785 | /* |
786 | * ASCII representation of charsets. | |
787 | * | |
788 | * Each leaf is represented as 9 32-bit values, the code of the first character followed | |
789 | * by 8 32 bit values for the leaf itself. Each value is encoded as 5 ASCII characters, | |
790 | * only 85 different values are used to avoid control characters as well as the other | |
791 | * characters used to encode font names. 85**5 > 2^32 so things work out, but | |
792 | * it's not exactly human readable output. As a special case, 0 is encoded as a space | |
793 | */ | |
794 | ||
82f4243f | 795 | static const unsigned char charToValue[256] = { |
24330d27 KP |
796 | /* "" */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
797 | /* "\b" */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
798 | /* "\020" */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
799 | /* "\030" */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
800 | /* " " */ 0xff, 0x00, 0xff, 0x01, 0x02, 0x03, 0x04, 0xff, | |
801 | /* "(" */ 0x05, 0x06, 0x07, 0x08, 0xff, 0xff, 0x09, 0x0a, | |
802 | /* "0" */ 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, | |
803 | /* "8" */ 0x13, 0x14, 0xff, 0x15, 0x16, 0xff, 0x17, 0x18, | |
804 | /* "@" */ 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, | |
805 | /* "H" */ 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, | |
806 | /* "P" */ 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, | |
807 | /* "X" */ 0x31, 0x32, 0x33, 0x34, 0xff, 0x35, 0x36, 0xff, | |
808 | /* "`" */ 0xff, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, | |
809 | /* "h" */ 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, | |
810 | /* "p" */ 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, | |
811 | /* "x" */ 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, 0xff, | |
812 | /* "\200" */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
813 | /* "\210" */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
814 | /* "\220" */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
815 | /* "\230" */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
816 | /* "\240" */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
817 | /* "\250" */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
818 | /* "\260" */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
819 | /* "\270" */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
820 | /* "\300" */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
821 | /* "\310" */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
822 | /* "\320" */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
823 | /* "\330" */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
824 | /* "\340" */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
825 | /* "\350" */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
826 | /* "\360" */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
827 | /* "\370" */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
828 | }; | |
829 | ||
82f4243f | 830 | static const FcChar8 valueToChar[0x55] = { |
24330d27 KP |
831 | /* 0x00 */ '!', '#', '$', '%', '&', '(', ')', '*', |
832 | /* 0x08 */ '+', '.', '/', '0', '1', '2', '3', '4', | |
833 | /* 0x10 */ '5', '6', '7', '8', '9', ';', '<', '>', | |
834 | /* 0x18 */ '?', '@', 'A', 'B', 'C', 'D', 'E', 'F', | |
835 | /* 0x20 */ 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', | |
836 | /* 0x28 */ 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', | |
837 | /* 0x30 */ 'W', 'X', 'Y', 'Z', '[', ']', '^', 'a', | |
838 | /* 0x38 */ 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', | |
839 | /* 0x40 */ 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', | |
840 | /* 0x48 */ 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', | |
841 | /* 0x50 */ 'z', '{', '|', '}', '~', | |
842 | }; | |
843 | ||
844 | static FcChar8 * | |
845 | FcCharSetParseValue (FcChar8 *string, FcChar32 *value) | |
846 | { | |
847 | int i; | |
848 | FcChar32 v; | |
ccb3e93b | 849 | FcChar32 c; |
24330d27 KP |
850 | |
851 | if (*string == ' ') | |
852 | { | |
853 | v = 0; | |
854 | string++; | |
855 | } | |
856 | else | |
857 | { | |
858 | v = 0; | |
859 | for (i = 0; i < 5; i++) | |
860 | { | |
ccb3e93b | 861 | if (!(c = (FcChar32) (unsigned char) *string++)) |
24330d27 KP |
862 | return 0; |
863 | c = charToValue[c]; | |
864 | if (c == 0xff) | |
865 | return 0; | |
866 | v = v * 85 + c; | |
867 | } | |
868 | } | |
869 | *value = v; | |
870 | return string; | |
871 | } | |
872 | ||
873 | static FcBool | |
c2e7c611 | 874 | FcCharSetUnparseValue (FcStrBuf *buf, FcChar32 value) |
24330d27 KP |
875 | { |
876 | int i; | |
877 | if (value == 0) | |
878 | { | |
c2e7c611 | 879 | return FcStrBufChar (buf, ' '); |
24330d27 KP |
880 | } |
881 | else | |
882 | { | |
883 | FcChar8 string[6]; | |
884 | FcChar8 *s = string + 5; | |
885 | string[5] = '\0'; | |
886 | for (i = 0; i < 5; i++) | |
887 | { | |
888 | *--s = valueToChar[value % 85]; | |
889 | value /= 85; | |
890 | } | |
891 | for (i = 0; i < 5; i++) | |
c2e7c611 | 892 | if (!FcStrBufChar (buf, *s++)) |
24330d27 KP |
893 | return FcFalse; |
894 | } | |
895 | return FcTrue; | |
896 | } | |
897 | ||
20ac65ab KP |
898 | typedef struct _FcCharLeafEnt FcCharLeafEnt; |
899 | ||
900 | struct _FcCharLeafEnt { | |
901 | FcCharLeafEnt *next; | |
902 | FcChar32 hash; | |
903 | FcCharLeaf leaf; | |
904 | }; | |
905 | ||
906 | #define FC_CHAR_LEAF_BLOCK (4096 / sizeof (FcCharLeafEnt)) | |
34cd0514 CW |
907 | static FcCharLeafEnt **FcCharLeafBlocks; |
908 | static int FcCharLeafBlockCount; | |
20ac65ab KP |
909 | |
910 | static FcCharLeafEnt * | |
911 | FcCharLeafEntCreate (void) | |
912 | { | |
913 | static FcCharLeafEnt *block; | |
914 | static int remain; | |
915 | ||
916 | if (!remain) | |
917 | { | |
34cd0514 CW |
918 | FcCharLeafEnt **newBlocks; |
919 | ||
920 | FcCharLeafBlockCount++; | |
921 | newBlocks = realloc (FcCharLeafBlocks, FcCharLeafBlockCount * sizeof (FcCharLeafEnt *)); | |
922 | if (!newBlocks) | |
923 | return 0; | |
924 | FcCharLeafBlocks = newBlocks; | |
925 | block = FcCharLeafBlocks[FcCharLeafBlockCount-1] = malloc (FC_CHAR_LEAF_BLOCK * sizeof (FcCharLeafEnt)); | |
20ac65ab KP |
926 | if (!block) |
927 | return 0; | |
d8d73958 | 928 | FcMemAlloc (FC_MEM_CHARLEAF, FC_CHAR_LEAF_BLOCK * sizeof (FcCharLeafEnt)); |
20ac65ab KP |
929 | remain = FC_CHAR_LEAF_BLOCK; |
930 | } | |
931 | remain--; | |
932 | return block++; | |
933 | } | |
934 | ||
935 | #define FC_CHAR_LEAF_HASH_SIZE 257 | |
936 | ||
937 | static FcChar32 | |
938 | FcCharLeafHash (FcCharLeaf *leaf) | |
939 | { | |
940 | FcChar32 hash = 0; | |
941 | int i; | |
942 | ||
943 | for (i = 0; i < 256/32; i++) | |
944 | hash = ((hash << 1) | (hash >> 31)) ^ leaf->map[i]; | |
945 | return hash; | |
946 | } | |
947 | ||
948 | static int FcCharLeafTotal; | |
949 | static int FcCharLeafUsed; | |
950 | ||
34cd0514 CW |
951 | static FcCharLeafEnt *FcCharLeafHashTable[FC_CHAR_LEAF_HASH_SIZE]; |
952 | ||
20ac65ab | 953 | static FcCharLeaf * |
4c003605 | 954 | FcCharSetFreezeLeaf (FcCharLeaf *leaf) |
20ac65ab | 955 | { |
20ac65ab | 956 | FcChar32 hash = FcCharLeafHash (leaf); |
34cd0514 | 957 | FcCharLeafEnt **bucket = &FcCharLeafHashTable[hash % FC_CHAR_LEAF_HASH_SIZE]; |
20ac65ab KP |
958 | FcCharLeafEnt *ent; |
959 | ||
960 | FcCharLeafTotal++; | |
961 | for (ent = *bucket; ent; ent = ent->next) | |
962 | { | |
963 | if (ent->hash == hash && !memcmp (&ent->leaf, leaf, sizeof (FcCharLeaf))) | |
964 | return &ent->leaf; | |
965 | } | |
966 | ||
967 | ent = FcCharLeafEntCreate(); | |
968 | if (!ent) | |
969 | return 0; | |
970 | FcCharLeafUsed++; | |
971 | ent->leaf = *leaf; | |
972 | ent->hash = hash; | |
973 | ent->next = *bucket; | |
974 | *bucket = ent; | |
975 | return &ent->leaf; | |
976 | } | |
977 | ||
34cd0514 CW |
978 | static void |
979 | FcCharSetThawAllLeaf (void) | |
980 | { | |
981 | int i; | |
982 | ||
983 | for (i = 0; i < FC_CHAR_LEAF_HASH_SIZE; i++) | |
984 | FcCharLeafHashTable[i] = 0; | |
985 | ||
986 | FcCharLeafTotal = 0; | |
987 | FcCharLeafUsed = 0; | |
988 | ||
989 | for (i = 0; i < FcCharLeafBlockCount; i++) | |
990 | free (FcCharLeafBlocks[i]); | |
991 | ||
992 | free (FcCharLeafBlocks); | |
993 | FcCharLeafBlocks = 0; | |
994 | FcCharLeafBlockCount = 0; | |
995 | } | |
996 | ||
20ac65ab KP |
997 | typedef struct _FcCharSetEnt FcCharSetEnt; |
998 | ||
999 | struct _FcCharSetEnt { | |
1000 | FcCharSetEnt *next; | |
1001 | FcChar32 hash; | |
1002 | FcCharSet set; | |
1003 | }; | |
1004 | ||
1005 | #define FC_CHAR_SET_HASH_SIZE 67 | |
1006 | ||
1007 | static FcChar32 | |
1008 | FcCharSetHash (FcCharSet *fcs) | |
1009 | { | |
1010 | FcChar32 hash = 0; | |
20ac65ab KP |
1011 | int i; |
1012 | ||
1013 | /* hash in leaves */ | |
67accef4 | 1014 | for (i = 0; i < fcs->num * (int) (sizeof (FcCharLeaf *) / sizeof (FcChar32)); i++) |
cd2ec1a9 | 1015 | hash = ((hash << 1) | (hash >> 31)) ^ (FcChar32)(FcCharSetGetLeaf(fcs, i)->map); |
20ac65ab KP |
1016 | /* hash in numbers */ |
1017 | for (i = 0; i < fcs->num; i++) | |
cd2ec1a9 | 1018 | hash = ((hash << 1) | (hash >> 31)) ^ *FcCharSetGetNumbers(fcs); |
20ac65ab KP |
1019 | return hash; |
1020 | } | |
1021 | ||
1022 | static int FcCharSetTotal; | |
1023 | static int FcCharSetUsed; | |
1024 | static int FcCharSetTotalEnts, FcCharSetUsedEnts; | |
1025 | ||
34cd0514 CW |
1026 | static FcCharSetEnt *FcCharSetHashTable[FC_CHAR_SET_HASH_SIZE]; |
1027 | ||
20ac65ab | 1028 | static FcCharSet * |
4c003605 | 1029 | FcCharSetFreezeBase (FcCharSet *fcs) |
20ac65ab | 1030 | { |
20ac65ab | 1031 | FcChar32 hash = FcCharSetHash (fcs); |
34cd0514 | 1032 | FcCharSetEnt **bucket = &FcCharSetHashTable[hash % FC_CHAR_SET_HASH_SIZE]; |
20ac65ab | 1033 | FcCharSetEnt *ent; |
d8d73958 | 1034 | int size; |
20ac65ab KP |
1035 | |
1036 | FcCharSetTotal++; | |
1037 | FcCharSetTotalEnts += fcs->num; | |
1038 | for (ent = *bucket; ent; ent = ent->next) | |
1039 | { | |
1040 | if (ent->hash == hash && | |
1041 | ent->set.num == fcs->num && | |
cd2ec1a9 PL |
1042 | !memcmp (FcCharSetGetNumbers(&ent->set), |
1043 | FcCharSetGetNumbers(fcs), | |
20ac65ab KP |
1044 | fcs->num * sizeof (FcChar16))) |
1045 | { | |
cd2ec1a9 PL |
1046 | FcBool ok = FcTrue; |
1047 | int i; | |
1048 | ||
1049 | for (i = 0; i < fcs->num; i++) | |
1050 | if (FcCharSetGetLeaf(&ent->set, i) != FcCharSetGetLeaf(fcs, i)) | |
1051 | ok = FcFalse; | |
1052 | if (ok) | |
1053 | return &ent->set; | |
20ac65ab KP |
1054 | } |
1055 | } | |
1056 | ||
d8d73958 KP |
1057 | size = (sizeof (FcCharSetEnt) + |
1058 | fcs->num * sizeof (FcCharLeaf *) + | |
1059 | fcs->num * sizeof (FcChar16)); | |
1060 | ent = malloc (size); | |
20ac65ab KP |
1061 | if (!ent) |
1062 | return 0; | |
d8d73958 | 1063 | FcMemAlloc (FC_MEM_CHARSET, size); |
20ac65ab KP |
1064 | FcCharSetUsed++; |
1065 | FcCharSetUsedEnts += fcs->num; | |
1066 | ||
d8d73958 | 1067 | ent->set.ref = FC_REF_CONSTANT; |
20ac65ab | 1068 | ent->set.num = fcs->num; |
4262e0b3 PL |
1069 | ent->set.bank = fcs->bank; |
1070 | if (fcs->bank == FC_BANK_DYNAMIC) | |
5c7fb827 | 1071 | { |
cd2ec1a9 PL |
1072 | if (fcs->num) |
1073 | { | |
1074 | ent->set.u.dyn.leaves = (FcCharLeaf **) (ent + 1); | |
1075 | ent->set.u.dyn.numbers = (FcChar16 *) (ent->set.u.dyn.leaves + fcs->num); | |
1076 | memcpy (ent->set.u.dyn.leaves, fcs->u.dyn.leaves, fcs->num * sizeof (FcCharLeaf *)); | |
1077 | memcpy (ent->set.u.dyn.numbers, fcs->u.dyn.numbers, fcs->num * sizeof (FcChar16)); | |
1078 | } | |
1079 | else | |
1080 | { | |
1081 | ent->set.u.dyn.leaves = 0; | |
1082 | ent->set.u.dyn.numbers = 0; | |
1083 | } | |
5c7fb827 KP |
1084 | } |
1085 | else | |
1086 | { | |
cd2ec1a9 PL |
1087 | ent->set.u.stat.leafidx_offset = fcs->u.stat.leafidx_offset; |
1088 | ent->set.u.stat.numbers_offset = fcs->u.stat.numbers_offset; | |
5c7fb827 | 1089 | } |
20ac65ab KP |
1090 | |
1091 | ent->hash = hash; | |
1092 | ent->next = *bucket; | |
1093 | *bucket = ent; | |
1094 | return &ent->set; | |
1095 | } | |
1096 | ||
34cd0514 CW |
1097 | void |
1098 | FcCharSetThawAll (void) | |
1099 | { | |
1100 | int i; | |
1101 | FcCharSetEnt *ent, *next; | |
1102 | ||
1103 | for (i = 0; i < FC_CHAR_SET_HASH_SIZE; i++) | |
1104 | { | |
1105 | for (ent = FcCharSetHashTable[i]; ent; ent = next) | |
1106 | { | |
1107 | next = ent->next; | |
1108 | free (ent); | |
1109 | } | |
1110 | FcCharSetHashTable[i] = 0; | |
1111 | } | |
1112 | ||
1113 | FcCharSetTotal = 0; | |
1114 | FcCharSetTotalEnts = 0; | |
1115 | FcCharSetUsed = 0; | |
1116 | FcCharSetUsedEnts = 0; | |
1117 | ||
1118 | FcCharSetThawAllLeaf (); | |
1119 | } | |
1120 | ||
4c003605 KP |
1121 | FcCharSet * |
1122 | FcCharSetFreeze (FcCharSet *fcs) | |
1123 | { | |
1124 | FcCharSet *b; | |
1125 | FcCharSet *n = 0; | |
1126 | FcCharLeaf *l; | |
1127 | int i; | |
1128 | ||
1129 | b = FcCharSetCreate (); | |
1130 | if (!b) | |
1131 | goto bail0; | |
1132 | for (i = 0; i < fcs->num; i++) | |
1133 | { | |
cd2ec1a9 | 1134 | l = FcCharSetFreezeLeaf (FcCharSetGetLeaf(fcs, i)); |
4c003605 KP |
1135 | if (!l) |
1136 | goto bail1; | |
cd2ec1a9 | 1137 | if (!FcCharSetInsertLeaf (b, FcCharSetGetNumbers(fcs)[i] << 8, l)) |
4c003605 KP |
1138 | goto bail1; |
1139 | } | |
1140 | n = FcCharSetFreezeBase (b); | |
1141 | bail1: | |
4262e0b3 | 1142 | if (b->bank == FC_BANK_DYNAMIC) |
d8d73958 | 1143 | { |
cd2ec1a9 PL |
1144 | if (b->u.dyn.leaves) |
1145 | { | |
1146 | FcMemFree (FC_MEM_CHARSET, b->num * sizeof (FcCharLeaf *)); | |
1147 | free (b->u.dyn.leaves); | |
1148 | } | |
1149 | if (b->u.dyn.numbers) | |
1150 | { | |
1151 | FcMemFree (FC_MEM_CHARSET, b->num * sizeof (FcChar16)); | |
1152 | free (b->u.dyn.numbers); | |
1153 | } | |
d8d73958 KP |
1154 | } |
1155 | FcMemFree (FC_MEM_CHARSET, sizeof (FcCharSet)); | |
4c003605 KP |
1156 | free (b); |
1157 | bail0: | |
1158 | return n; | |
1159 | } | |
1160 | ||
24330d27 KP |
1161 | FcCharSet * |
1162 | FcNameParseCharSet (FcChar8 *string) | |
1163 | { | |
20ac65ab | 1164 | FcCharSet *c, *n = 0; |
24330d27 KP |
1165 | FcChar32 ucs4; |
1166 | FcCharLeaf *leaf; | |
20ac65ab KP |
1167 | FcCharLeaf temp; |
1168 | FcChar32 bits; | |
24330d27 KP |
1169 | int i; |
1170 | ||
1171 | c = FcCharSetCreate (); | |
1172 | if (!c) | |
1173 | goto bail0; | |
1174 | while (*string) | |
1175 | { | |
1176 | string = FcCharSetParseValue (string, &ucs4); | |
1177 | if (!string) | |
1178 | goto bail1; | |
20ac65ab | 1179 | bits = 0; |
24330d27 KP |
1180 | for (i = 0; i < 256/32; i++) |
1181 | { | |
20ac65ab | 1182 | string = FcCharSetParseValue (string, &temp.map[i]); |
24330d27 KP |
1183 | if (!string) |
1184 | goto bail1; | |
20ac65ab KP |
1185 | bits |= temp.map[i]; |
1186 | } | |
1187 | if (bits) | |
1188 | { | |
4c003605 | 1189 | leaf = FcCharSetFreezeLeaf (&temp); |
20ac65ab KP |
1190 | if (!leaf) |
1191 | goto bail1; | |
1192 | if (!FcCharSetInsertLeaf (c, ucs4, leaf)) | |
1193 | goto bail1; | |
24330d27 KP |
1194 | } |
1195 | } | |
20ac65ab KP |
1196 | #ifdef CHATTY |
1197 | printf (" %8s %8s %8s %8s\n", "total", "totalmem", "new", "newmem"); | |
1198 | printf ("Leaves: %8d %8d %8d %8d\n", | |
1199 | FcCharLeafTotal, sizeof (FcCharLeaf) * FcCharLeafTotal, | |
1200 | FcCharLeafUsed, sizeof (FcCharLeaf) * FcCharLeafUsed); | |
1201 | printf ("Charsets: %8d %8d %8d %8d\n", | |
1202 | FcCharSetTotal, sizeof (FcCharSet) * FcCharSetTotal, | |
1203 | FcCharSetUsed, sizeof (FcCharSet) * FcCharSetUsed); | |
1204 | printf ("Tables: %8d %8d %8d %8d\n", | |
1205 | FcCharSetTotalEnts, FcCharSetTotalEnts * (sizeof (FcCharLeaf *) + sizeof (FcChar16)), | |
1206 | FcCharSetUsedEnts, FcCharSetUsedEnts * (sizeof (FcCharLeaf *) + sizeof (FcChar16))); | |
1207 | printf ("Total: %8s %8d %8s %8d\n", | |
1208 | "", | |
1209 | sizeof (FcCharLeaf) * FcCharLeafTotal + | |
1210 | sizeof (FcCharSet) * FcCharSetTotal + | |
1211 | FcCharSetTotalEnts * (sizeof (FcCharLeaf *) + sizeof (FcChar16)), | |
1212 | "", | |
1213 | sizeof (FcCharLeaf) * FcCharLeafUsed + | |
1214 | sizeof (FcCharSet) * FcCharSetUsed + | |
1215 | FcCharSetUsedEnts * (sizeof (FcCharLeaf *) + sizeof (FcChar16))); | |
1216 | #endif | |
4c003605 | 1217 | n = FcCharSetFreezeBase (c); |
24330d27 | 1218 | bail1: |
4262e0b3 | 1219 | if (c->bank == FC_BANK_DYNAMIC) |
d8d73958 | 1220 | { |
cd2ec1a9 PL |
1221 | if (c->u.dyn.leaves) |
1222 | { | |
1223 | FcMemFree (FC_MEM_CHARSET, c->num * sizeof (FcCharLeaf *)); | |
1224 | free (c->u.dyn.leaves); | |
1225 | } | |
1226 | if (c->u.dyn.numbers) | |
1227 | { | |
1228 | FcMemFree (FC_MEM_CHARSET, c->num * sizeof (FcChar16)); | |
1229 | free (c->u.dyn.numbers); | |
1230 | } | |
1231 | FcMemFree (FC_MEM_CHARSET, sizeof (FcCharSet)); | |
d8d73958 | 1232 | } |
20ac65ab | 1233 | free (c); |
24330d27 | 1234 | bail0: |
20ac65ab | 1235 | return n; |
24330d27 KP |
1236 | } |
1237 | ||
1238 | FcBool | |
c2e7c611 | 1239 | FcNameUnparseCharSet (FcStrBuf *buf, const FcCharSet *c) |
24330d27 KP |
1240 | { |
1241 | FcCharSetIter ci; | |
1242 | int i; | |
1243 | #ifdef CHECK | |
1244 | int len = buf->len; | |
1245 | #endif | |
1246 | ||
1247 | for (FcCharSetIterStart (c, &ci); | |
1248 | ci.leaf; | |
1249 | FcCharSetIterNext (c, &ci)) | |
1250 | { | |
1251 | if (!FcCharSetUnparseValue (buf, ci.ucs4)) | |
1252 | return FcFalse; | |
1253 | for (i = 0; i < 256/32; i++) | |
1254 | if (!FcCharSetUnparseValue (buf, ci.leaf->map[i])) | |
1255 | return FcFalse; | |
1256 | } | |
1257 | #ifdef CHECK | |
1258 | { | |
1259 | FcCharSet *check; | |
1260 | FcChar32 missing; | |
1261 | FcCharSetIter ci, checki; | |
1262 | ||
1263 | /* null terminate for parser */ | |
c2e7c611 | 1264 | FcStrBufChar (buf, '\0'); |
24330d27 KP |
1265 | /* step back over null for life after test */ |
1266 | buf->len--; | |
1267 | check = FcNameParseCharSet (buf->buf + len); | |
1268 | FcCharSetIterStart (c, &ci); | |
1269 | FcCharSetIterStart (check, &checki); | |
1270 | while (ci.leaf || checki.leaf) | |
1271 | { | |
1272 | if (ci.ucs4 < checki.ucs4) | |
1273 | { | |
1274 | printf ("Missing leaf node at 0x%x\n", ci.ucs4); | |
1275 | FcCharSetIterNext (c, &ci); | |
1276 | } | |
1277 | else if (checki.ucs4 < ci.ucs4) | |
1278 | { | |
1279 | printf ("Extra leaf node at 0x%x\n", checki.ucs4); | |
1280 | FcCharSetIterNext (check, &checki); | |
1281 | } | |
1282 | else | |
1283 | { | |
1284 | int i = 256/32; | |
1285 | FcChar32 *cm = ci.leaf->map; | |
1286 | FcChar32 *checkm = checki.leaf->map; | |
1287 | ||
1288 | for (i = 0; i < 256; i += 32) | |
1289 | { | |
1290 | if (*cm != *checkm) | |
1291 | printf ("Mismatching sets at 0x%08x: 0x%08x != 0x%08x\n", | |
1292 | ci.ucs4 + i, *cm, *checkm); | |
1293 | cm++; | |
1294 | checkm++; | |
1295 | } | |
1296 | FcCharSetIterNext (c, &ci); | |
1297 | FcCharSetIterNext (check, &checki); | |
1298 | } | |
1299 | } | |
1300 | if ((missing = FcCharSetSubtractCount (c, check))) | |
1301 | printf ("%d missing in reparsed result\n", missing); | |
1302 | if ((missing = FcCharSetSubtractCount (check, c))) | |
1303 | printf ("%d extra in reparsed result\n", missing); | |
1304 | FcCharSetDestroy (check); | |
1305 | } | |
1306 | #endif | |
1307 | ||
1308 | return FcTrue; | |
1309 | } | |
cd2ec1a9 | 1310 | |
4262e0b3 PL |
1311 | void |
1312 | FcCharSetNewBank(void) | |
cd2ec1a9 | 1313 | { |
4262e0b3 PL |
1314 | charset_count = 0; |
1315 | charset_numbers_count = 0; | |
1316 | charset_leaf_count = 0; | |
1317 | charset_leaf_idx_count = 0; | |
cd2ec1a9 PL |
1318 | } |
1319 | ||
4262e0b3 PL |
1320 | int |
1321 | FcCharSetNeededBytes (const FcCharSet *c) | |
cd2ec1a9 | 1322 | { |
4262e0b3 | 1323 | /* yes, there's redundancy */ |
cd2ec1a9 PL |
1324 | charset_count++; |
1325 | charset_leaf_idx_count++; | |
1326 | charset_leaf_count += c->num; | |
1327 | charset_numbers_count += c->num; | |
4262e0b3 PL |
1328 | return sizeof (FcCharSet) + |
1329 | sizeof (int) + /* leaf_idx */ | |
1330 | sizeof (FcCharLeaf) * c->num + /* leaf */ | |
1331 | sizeof (FcChar16) * c->num; /* number */ | |
1332 | } | |
1333 | ||
7fd7221e PL |
1334 | int |
1335 | FcCharSetNeededBytesAlign (void) | |
1336 | { | |
1337 | return __alignof__ (FcCharSet) + __alignof__ (int) + | |
1338 | __alignof__ (FcCharLeaf) + __alignof__ (FcChar16); | |
1339 | } | |
1340 | ||
4262e0b3 PL |
1341 | static FcBool |
1342 | FcCharSetEnsureBank (int bi) | |
1343 | { | |
1344 | if (!charsets || charset_bank_count <= bi) | |
1345 | { | |
1346 | int new_count = charset_bank_count + 2; | |
1347 | FcCharSet ** cs; | |
1348 | FcChar16 ** n; | |
1349 | FcCharLeaf ** lvs; | |
1350 | int ** lvi; | |
1351 | int i; | |
1352 | ||
1353 | cs = realloc(charsets, sizeof(FcCharSet*) * new_count); | |
1354 | if (!cs) return 0; | |
1355 | n = realloc(numbers, sizeof(FcChar16*) * new_count); | |
1356 | if (!n) return 0; | |
1357 | lvs = realloc(leaves, sizeof(FcCharLeaf*) * new_count); | |
1358 | if (!lvs) return 0; | |
1359 | lvi = realloc(leaf_idx, sizeof(int*) * new_count); | |
1360 | if (!lvi) return 0; | |
1361 | ||
1362 | charsets = cs; numbers = n; leaves = lvs; leaf_idx = lvi; | |
1363 | for (i = charset_bank_count; i < new_count; i++) | |
1364 | { | |
1365 | charsets[i] = 0; | |
1366 | numbers[i] = 0; | |
1367 | leaves[i] = 0; | |
1368 | leaf_idx[i] = 0; | |
1369 | } | |
1370 | charset_bank_count = new_count; | |
1371 | } | |
cd2ec1a9 PL |
1372 | return FcTrue; |
1373 | } | |
1374 | ||
4262e0b3 PL |
1375 | void * |
1376 | FcCharSetDistributeBytes (FcCache * metadata, void * block_ptr) | |
1377 | { | |
1378 | int bi = FcCacheBankToIndex(metadata->bank); | |
1379 | if (!FcCharSetEnsureBank(bi)) | |
1380 | return 0; | |
1381 | ||
7fd7221e | 1382 | block_ptr = ALIGN (block_ptr, FcCharSet); |
1c5b6345 | 1383 | charsets[bi] = (FcCharSet *)block_ptr; |
4262e0b3 PL |
1384 | block_ptr = (void *)((char *)block_ptr + |
1385 | (sizeof (FcCharSet) * charset_count)); | |
7fd7221e | 1386 | block_ptr = ALIGN (block_ptr, FcChar16); |
1c5b6345 | 1387 | numbers[bi] = (FcChar16 *)block_ptr; |
4262e0b3 PL |
1388 | block_ptr = (void *)((char *)block_ptr + |
1389 | (sizeof(FcChar16) * charset_numbers_count)); | |
7fd7221e | 1390 | block_ptr = ALIGN (block_ptr, FcCharLeaf); |
1c5b6345 | 1391 | leaves[bi] = (FcCharLeaf *)block_ptr; |
4262e0b3 PL |
1392 | block_ptr = (void *)((char *)block_ptr + |
1393 | (sizeof(FcCharLeaf) * charset_leaf_count)); | |
7fd7221e | 1394 | block_ptr = ALIGN (block_ptr, int); |
1c5b6345 | 1395 | leaf_idx[bi] = (int *)block_ptr; |
4262e0b3 PL |
1396 | block_ptr = (void *)((char *)block_ptr + |
1397 | (sizeof(int) * charset_leaf_idx_count)); | |
1398 | ||
1399 | metadata->charset_count = charset_count; | |
1400 | metadata->charset_numbers_count = charset_numbers_count; | |
1401 | metadata->charset_leaf_count = charset_leaf_count; | |
1402 | metadata->charset_leaf_idx_count = charset_leaf_idx_count; | |
1403 | charset_ptr = 0; charset_leaf_ptr = 0; | |
1404 | charset_leaf_idx_ptr = 0; charset_numbers_ptr = 0; | |
1405 | return block_ptr; | |
1406 | } | |
1407 | ||
1408 | FcCharSet * | |
1409 | FcCharSetSerialize(int bank, FcCharSet *c) | |
cd2ec1a9 PL |
1410 | { |
1411 | int i; | |
cd2ec1a9 | 1412 | FcCharSet new; |
4262e0b3 | 1413 | int bi = FcCacheBankToIndex(bank), cp = charset_ptr; |
cd2ec1a9 | 1414 | |
212c9f43 | 1415 | new.ref = FC_REF_CONSTANT; |
4262e0b3 | 1416 | new.bank = bank; |
212c9f43 | 1417 | new.u.stat.leafidx_offset = charset_leaf_idx_ptr; |
cd2ec1a9 | 1418 | new.u.stat.numbers_offset = charset_numbers_ptr; |
212c9f43 | 1419 | new.num = c->num; |
cd2ec1a9 | 1420 | |
4262e0b3 | 1421 | charsets[bi][charset_ptr++] = new; |
cd2ec1a9 | 1422 | |
4262e0b3 | 1423 | leaf_idx[bi][charset_leaf_idx_ptr++] = charset_leaf_ptr; |
cd2ec1a9 PL |
1424 | for (i = 0; i < c->num; i++) |
1425 | { | |
4262e0b3 | 1426 | memcpy (&leaves[bi][charset_leaf_ptr++], |
cd2ec1a9 | 1427 | c->u.dyn.leaves[i], sizeof(FcCharLeaf)); |
4262e0b3 | 1428 | numbers[bi][charset_numbers_ptr++] = c->u.dyn.numbers[i]; |
cd2ec1a9 PL |
1429 | } |
1430 | ||
4262e0b3 | 1431 | return &charsets[bi][cp]; |
212c9f43 PL |
1432 | } |
1433 | ||
4262e0b3 | 1434 | void * |
61571f3f | 1435 | FcCharSetUnserialize (FcCache *metadata, void *block_ptr) |
212c9f43 | 1436 | { |
61571f3f | 1437 | int bi = FcCacheBankToIndex(metadata->bank); |
4262e0b3 PL |
1438 | if (!FcCharSetEnsureBank(bi)) |
1439 | return 0; | |
212c9f43 | 1440 | |
1c5b6345 | 1441 | block_ptr = ALIGN (block_ptr, FcCharSet); |
4262e0b3 PL |
1442 | charsets[bi] = (FcCharSet *)block_ptr; |
1443 | block_ptr = (void *)((char *)block_ptr + | |
61571f3f | 1444 | (sizeof (FcCharSet) * metadata->charset_count)); |
1c5b6345 | 1445 | block_ptr = ALIGN (block_ptr, FcChar16); |
4262e0b3 PL |
1446 | numbers[bi] = (FcChar16 *)block_ptr; |
1447 | block_ptr = (void *)((char *)block_ptr + | |
61571f3f | 1448 | (sizeof(FcChar16) * metadata->charset_numbers_count)); |
1c5b6345 | 1449 | block_ptr = ALIGN (block_ptr, FcCharLeaf); |
4262e0b3 PL |
1450 | leaves[bi] = (FcCharLeaf *)block_ptr; |
1451 | block_ptr = (void *)((char *)block_ptr + | |
61571f3f | 1452 | (sizeof(FcCharLeaf) * metadata->charset_leaf_count)); |
1c5b6345 | 1453 | block_ptr = ALIGN (block_ptr, int); |
4262e0b3 PL |
1454 | leaf_idx[bi] = (int *)block_ptr; |
1455 | block_ptr = (void *)((char *)block_ptr + | |
61571f3f | 1456 | (sizeof(int) * metadata->charset_leaf_idx_count)); |
4262e0b3 PL |
1457 | |
1458 | return block_ptr; | |
212c9f43 PL |
1459 | } |
1460 | ||
cd2ec1a9 PL |
1461 | FcCharLeaf * |
1462 | FcCharSetGetLeaf(const FcCharSet *c, int i) | |
1463 | { | |
4262e0b3 PL |
1464 | int bi; |
1465 | if (c->bank == FC_BANK_DYNAMIC) | |
cd2ec1a9 | 1466 | return c->u.dyn.leaves[i]; |
4262e0b3 PL |
1467 | bi = FcCacheBankToIndex(c->bank); |
1468 | ||
1469 | return &leaves[bi][leaf_idx[bi][c->u.stat.leafidx_offset]+i]; | |
cd2ec1a9 PL |
1470 | } |
1471 | ||
1472 | FcChar16 * | |
1473 | FcCharSetGetNumbers(const FcCharSet *c) | |
1474 | { | |
4262e0b3 PL |
1475 | int bi; |
1476 | if (c->bank == FC_BANK_DYNAMIC) | |
cd2ec1a9 | 1477 | return c->u.dyn.numbers; |
4262e0b3 PL |
1478 | bi = FcCacheBankToIndex(c->bank); |
1479 | ||
1480 | return &numbers[bi][c->u.stat.numbers_offset]; | |
cd2ec1a9 PL |
1481 | } |
1482 |